On the midnight shift, the number of patients with head trauma in an emergency room has the probability distribution shown below.

Why do you think electric energy for households is generally supplied by power plants instead of by an electric generator at home.

When graphing a linear equation that is written in the form y=mx+b, the variable m represents the y-intercept. assuming that b> 0, which of the following best describes how reversing the sign of b would affect the graph? a) the new line will be shifted down b units b) the new line will be shifted down b x 2 units c) the new line will be a perfect reflection across the x-axis d) the new line will be a perfect reflection across the y-axis

Certification programs are offered by all of the following except